Phylum Amoebozoa Lühe, 1913
   Subphylum Conosa Cavalier-Smith, 1998 see Infraphylum Conosa Cavalier-Smith, 1998
     Class Variosea Cavalier-Smith, 2004
       Order Phalansteriida Hibberd, 1983 [monotypic]
         Family Phalansteriidae Kent, 1880-1881 [monotypic]
           Genus Phalansterium Stein, 1878
             1 Phalansterium consociatum (G. Fresenius, 1858) L. de Cienkowski, 1870
             2 Phalansterium digitatum F. Stein, 1878
             3 Phalansterium solitarium Sandon, 1924
             4 Phalansterium filosum Cavalier-Smith & Chao, 2011